Name the factors that contribute to air pollution in major cities.
user
Urban pollution affects aesthetics and health; solutions are being sought in both technology and policy.
assistant
Name the factors that contribute to air pollution in major cities.
user
Urban air pollution can sometimes obscure our view of skyscrapers, affecting the city's visual appeal.
assistant
Name the factors that contribute to air pollution in major cities.
Name the factors that contribute to air pollution in major cities.